Infrared and Laser Engineering, Volume. 49, Issue 6, 20200079(2020)
Fast measurement of human body posture based on three-dimensional optical information
Figures & Tables(9)
Fig. 1. Target data (a) distribution of the markers (b) angle calculation diagram
Fig. 3. Calibration balls (a) calibration balls used in system measurement accuracy (b) schematic diagram of the spacing of the calibration balls
Fig. 4. Method comparison (a) traditional TWPSP body scanning schematic (b) improved TWPSP body scanning schematic (c) fitting result of traditional method (d) result of the method in this paper (e) traditional TWPSP method reconstruction chart (f) improved TWPSP method reconstruction chart
Fig. 5. Comparison of the average values of the three groups of poses
Table 1. First five measurements of calibration balls
View tableView in ArticleTable 1. First five measurements of calibration balls
Key dimensions Traditional TWPSP method Method in this paper /mm 1 49.853 49.970 2 50.053 50.038 3 49.979 50.000 4 49.956 50.009 5 50.014 50.024 Average 49.971 49.998 RMSE 0.044 0.019 /mm 1 25.096 25.072 2 24.975 25.019 3 25.048 24.963 4 24.981 25.051 5 2525.077 24.949 Average 25.061 25.028 RMSE 0.053 0.037 /mm 1 55.654 55.924 2 55.643 55.934 3 55.572 55.910 4 55.632 55.881 5 55.610 55.875 Average 55.940 55.895 RMSE 0.055 0.035
Table 2. Data comparison table of fitting results
View tableView in ArticleTable 2. Data comparison table of fitting results
Traditional TWPSP method 19.949 19.961 19.978 0.048 0.035 0.039 Method in this paper 19.979 19.978 19.988 0.028 0.018 0.019
Table 3. Point cloud data analysis of different sensors
View tableView in ArticleTable 3. Point cloud data analysis of different sensors
Equipment Point cloud number Point cloud density Accuracy/mm Reconstruction time/s Artec scanner 795 785 0.143 0.1 7 Sense scanner 121 717 0.001 0.9 5 Traditional TWPSP method system 236 540 0.016 0.055 2 Scanning system of this paper 296 540 0.016 0.03 1
Table 4. Angles of key points (all values are reported as degree)
View tableView in ArticleTable 4. Angles of key points (all values are reported as degree)
Average degree of No.1 car Average degree of No.2 car Average degree of No.3 car RMSE of No.1 car RMSE of No.2 car RMSE of No.3 car Angle A 125.102 26.410 23.605 1.291 1.454 1.249 Angle A 298.491 104.70 5 98.370 5.230 5.775 5.081 Angle A 360.806 64.313 65.654 3.426 3.804 3.117 Angle A 4101.501 93.416 101.328 5.966 5.320 5.313 Angle A 535.543 30.677 35.385 3.926 3.165 3.381 Angle A 6127.434 133.667 138.095 2.117 2.084 2.879 Angle A 7154.080 141.380 144.400 8.344 8.661 8.250 Angle A 841.647 32.875 43.192 6.775 6.625 6.291 Angle A 9 13.935 9.661 14.399 3.864 3.297 3.958
Tools
Get Citation
Copy Citation Text
Limei Song, Haozhen Huang, Yang Chen, Xinjun Zhu, Yangang Yang, Qinghua Guo. Fast measurement of human body posture based on three-dimensional optical information[J]. Infrared and Laser Engineering, 2020, 49(6): 20200079
Paper Information
Category: Special issue-Optical 3D imaging and sensing
Received: Mar. 1, 2020
Accepted: --
Published Online: Aug. 19, 2020
The Author Email:
© Copyright 2018-2021 | Chinese Laser Press.
All Rights Reserved 沪ICP备15018463号-20